Patchwork [U-Boot,v2,batch,4,29/29] SECURE BOOT - Removed deletion of TLB entries code

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Submitter York Sun
Date March 25, 2013, 5:40 p.m.
Message ID <1364233225-31262-29-git-send-email-yorksun@freescale.com>
Download mbox | patch
Permalink /patch/230850/
State Accepted, archived
Delegated to: Andy Fleming
Headers show

Comments

York Sun - March 25, 2013, 5:40 p.m.
From: Ruchika Gupta <ruchika.gupta@freescale.com>

Boot ROM code creates TLB entries for 3.5G space before entering
the u-boot. Earlier we were deleting these entries after early
initialization of CPU. In recent past, code has been added
to invalidate all these entries before relocation of u-boot code.
So this code to delete TLB entries after CPU initialization
is no longer required.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Acked-by: Matthew McClintock <msm@freescale.com>
---
 arch/powerpc/cpu/mpc85xx/cpu_init_early.c  |    7 -------
 arch/powerpc/include/asm/fsl_secure_boot.h |   10 ----------
 2 files changed, 17 deletions(-)

Patch

diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
index dacfdd1..234fde4 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
@@ -180,12 +180,5 @@  void cpu_init_early_f(void)
 
 	invalidate_tlb(1);
 
-#if defined(CONFIG_SECURE_BOOT)
-	/* Disable the TLBs created by ISBC */
-	for (i = CONFIG_SYS_ISBC_START_TLB;
-	     i < CONFIG_SYS_ISBC_START_TLB + CONFIG_SYS_ISBC_NUM_TLBS; i++)
-			disable_tlb(i);
-#endif
-
 	init_tlbs();
 }
diff --git a/arch/powerpc/include/asm/fsl_secure_boot.h b/arch/powerpc/include/asm/fsl_secure_boot.h
index d1c1967..2bc6ed1 100644
--- a/arch/powerpc/include/asm/fsl_secure_boot.h
+++ b/arch/powerpc/include/asm/fsl_secure_boot.h
@@ -23,16 +23,6 @@ 
 #ifndef __FSL_SECURE_BOOT_H
 #define __FSL_SECURE_BOOT_H
 
-/* Starting TLB number for the TLB entried for 3.5 G space created by ISBC */
-#if defined(CONFIG_FSL_CORENET)
-#define CONFIG_SYS_ISBC_START_TLB		3
-#else
-#define CONFIG_SYS_ISBC_START_TLB		0
-#endif
-
-/* Number fo TLB's created by ISBC */
-#define CONFIG_SYS_ISBC_NUM_TLBS		5
-
 #if defined(CONFIG_FSL_CORENET)
 #define CONFIG_SYS_PBI_FLASH_BASE		0xc0000000
 #else